Amplificador quase complementar com dois 13009

In this quasi-complementary amplifier, I used two 13009 transistors taken from an ATX power supply and BC558 and BC548 transistors. The quasi-complementary class AB amplifier is assembled in a simple way and is powered by a good current 12-volt power supply. I use a 5-ohm speaker, but an 8-ohm speaker can be used. In the video, I give a very detailed explanation of the assembly of this quasi-complementary class AB amplifier.